Heterologous prime-boost vaccination with ChAdOx1 nCoV-19 and BNT162b2.

Competing Interests: JH reports grants and speaker honoraria from Pfizer, outside the study. UP reports grants from ALiOS and VirBio, and personal fees from AbbVie, Arbutus, Gilead, GSK, Johnson & Johnson, Roche, Sobi, and Vaccitech, outside the study. UP is co-founder and shareholder of SCG Cell Therapy. OAC reports grants or contracts from Amplyx, Basilea, BMBF, Cidara, German Center for Infection Research (DZIF), EU-DG RTD (101037867), F2G, Gilead, Matinas, MedPace, MSD, Mundipharma, Octapharma, Pfizer, and Scynexis; consulting fees from Amplyx, Biocon, Biosys, Cidara, Da Volterra, Gilead, Matinas, MedPace, Menarini, Molecular Partners, MSG-ERC, Noxxon, Octapharma, PSI, Scynexis, and Seres; honoraria for lectures from Abbott, Al-Jazeera Pharmaceuticals, Astellas, Grupo Biotoscana/United Medical/Knight, Hikma, MedScape, MedUpdate, Merck, Mylan, and Pfizer; payment for expert testimony from Cidara; payment for participation on a data safety monitoring board or advisory board from Actelion, Allecra, Cidara, Entasis, IQVIA, Janssen, MedPace, Paratek, PSI, and Shionogi; and other from DGHO, DGI, ECMM, ISHAM, MSG-ERC, Wiley, outside the submitted work. All other authors declare no competing interests.